Upvote:1
Yes, yes they do - as long as you don't plug them into the in-seat entertainment system; which relays the PA announcement on the audio jack.
I have used both the in ear passive noise cancelling headphones and active in ear and on ear headphones.
The active ones cancel out the PA completely; whereas the effectiveness of the passive ones depends on how snugly they fit in your ear.
I found that the active noise cancelling headphones provided in business class (on Emirates) do not work as effectively as aftermarket ones.
The brands I have used (linked to their Amazon pages), in order of effectiveness of cancellation:
Bose QC 25 - this is the newer model, I have the older version.
Bose QC 20 - this is the newer model, I have the older version.
Upvote:4
Not usually. Noise cancelling headphones are typically designed to cancel out low frequency sounds such as engine noise. You might find you can hear voices more clearly when wearing noise cancelling headphones as the background noise has been removed.
If you wish to suppress all sounds then you might look into in-ear moulded earpieces, such as ones by Shure that are designed to block all sound but provide a path for audio from your phone/laptop.